.validate_file_arg

Internal helper used by <code>generate_dockerfile()</code> to check that
optional file arguments (e.g. <code>data_file</code>, <code>code_file</code>,
<code>misc_file</code>) are valid.

internal

Automates the process of containerizing 'R' projects. The core
function of 'containr' is 'generate_dockerfile()', which analyzes an 'R'
project's environment and dependencies via an 'renv' lock file and generates
a ready-to-use 'Dockerfile' that encapsulates the computational setup. The
package helps researchers build portable and consistent workflows so that
analyses can be reliably shared, archived, and rerun across systems. See
R Core Team (2025) <https://www.R-project.org/>, Ushey et al. (2025)
<https://CRAN.R-project.org/package=renv>, and Docker Inc. (2025)
<https://www.docker.com/>.

Erwin Lares

containr

Containerize Your 'R' Project

.validate_file_arg function

<dl><dt>arg_name</dt>
<dd>Character string, the name of the argument being checked
(used only in error messages).</dd>
<dt>value</dt>
<dd>A character path to a file, or <code>NULL</code>.</dd></dl>

Arguments

Validate a file argument — .validate_file_arg

<dl>

<dt>arg_name</dt>
<dd>Character string, the name of the argument being checked
(used only in error messages).</dd>


<dt>value</dt>
<dd>A character path to a file, or <code>NULL</code>.</dd>

</dl>

.validate_file_arg: Validate a file argument

Description

Usage

Value

Arguments